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Low temperature valve

Model: DZ41Y
Nominal pressure: PN1.6 ~ 2.5Mpa
Nominal diameter: DN15 ~ 800mm
Main material: LCB, LF1, LF3, LC3 , CF8, F304 like
Temperature: -45 ℃ ~ 196 ℃
Design and manufacturing: JB / T 7749-95
Construction length: GB / T 12221-1989
Flange connection: JB / T 79-1994
Test and Inspection: JB / T 9092-1999

First, an overview of low temperature valve

There are two kinds of low-temperature valve cover design. The first is a bolt-type bonnet, according to this design of the valve, the valve body and the valve cap bolts and nuts, wound gasket (316 clip flexible graphite). Customers can also use special metal ring connection. The second design is welded bonnet, according to this design of the valve, the valve body and the valve cap screwed, all-welded seal. Customers have special requirements can also be used when welding penetration.

Second, the main components of low temperature valve material

1, valve body, bonnet: stainless steel
2, stem: 1Cr18Ni9Ti
3, gate, valve seat sealing surface: surfacing carbide
4, stem nut: aluminum bronze
5, gaskets: asbestos, wax asbestos rubber Board
6, packing: flexible graphite, PTFE, PTFE asbestos roving
7, hand wheel: ductile iron or steel forging

Third, the main specifications size

1.6MPa	DN	L	D	D1	D2	b	n-Φd	H	D0
Convex flange the RF DZ41 (0) 16LCB the Y- DZ41 (0) 16LC1 the Y- DZ41 (0) 16LC2 the Y- DZ41 (0) 16LC3 the Y- DZ41 (0) 16LC4 the Y- DZ41 (0) the Y-16P DZ41 (0) Y-16R	20	150	105	75	55	14	4-Φ14	320	140
	25	160	115	85	65	14	4-Φ14	350	160
	32	180	135	100	78	16	4-Φ18	385	180
	40	200	145	110	85	16	4-Φ18	420	220
	50	250	160	125	100	16	4-Φ18	540	240
	65	265	180	145	120	18	4-Φ18	610	240
	80	280	195	160	135	20	8-Φ18	690	280
	100	300	215	180	155	20	8-Φ18	780	300
	125	325	245	210	185	22	8-Φ18	930	320
	150	350	280	240	210	24	8-Φ23	980	350
	200	400	335	295	265	26	12-Φ23	1180	400
	250	450	105	355	320	30	12-Φ25	1390	450
	300	500	460	410	375	30	12-Φ25	1620	500
	350	550	520	470	435	34	16-Φ25	1810	500
	400	600	580	525	485	36	16-Φ30	1970	550
2.5MPa	20	150	105	75	55	16	4-Φ14	320	140
Convex flange the RF DZ41 (0) 25LCB the Y- DZ41 (0) 25LC1 the Y- DZ41 (0) 25LC2 the Y- DZ41 (0) 25LC3 the Y- DZ41 (0) 25LC4 the Y- DZ41 (0) the Y-25P DZ41 (0) Y-25R	25	160	115	85	65	16	4-Φ14	350	160
	32	180	135	100	78	18	4-Φ18	385	180
	40	200	145	110	85	18	4-Φ18	420	200
	50	250	160	125	100	20	4-Φ18	540	240
	65	265	180	145	120	22	8-Φ18	510	240
	80	280	195	160	135	22	8-Φ18	690	280
	100	300	230	190	160	24	8-Φ23	780	300
	125	325	270	220	188	28	8-Φ25	930	300
	150	350	300	250	218	30	8-Φ25	980	320
	200	400	360	310	278	34	12-Φ25	1180	360
	250	450	425	370	332	36	12-Φ30	1390	400
	300	500	485	430	390	40	16-Φ30	1620	450
	350	550	550	490	448	44	16-Φ34	1810	500
	400	600	610	550	505	48	16-Φ34	1990	560

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